./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/or-04.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/or-04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:47:55,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:47:55,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:47:55,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:47:55,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:47:55,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:47:55,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:47:55,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:47:55,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:47:55,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:47:55,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:47:55,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:47:55,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:47:55,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:47:55,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:47:55,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:47:55,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:47:55,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:47:55,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:47:55,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:47:55,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:47:55,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:47:55,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:47:55,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:47:55,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:47:55,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:47:55,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:47:55,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:47:55,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:47:55,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:47:55,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:47:55,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:47:55,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:47:55,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:47:55,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:47:55,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:47:55,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:47:55,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:47:55,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:47:55,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:47:55,549 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:47:55,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 18:47:55,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:47:55,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:47:55,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:47:55,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:47:55,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:47:55,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:47:55,616 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:47:55,617 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 18:47:55,617 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 18:47:55,618 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 18:47:55,618 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 18:47:55,618 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 18:47:55,618 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 18:47:55,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:47:55,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:47:55,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:47:55,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:47:55,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 18:47:55,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 18:47:55,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 18:47:55,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:47:55,621 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 18:47:55,622 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:47:55,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 18:47:55,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:47:55,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:47:55,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:47:55,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:47:55,625 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 18:47:55,625 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5de9087a921e8aad95bc80b29f24bf9506596da18bf9b4640846346a82bb2ae [2022-11-18 18:47:55,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:47:56,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:47:56,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:47:56,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:47:56,019 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:47:56,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-bwb/or-04.c [2022-11-18 18:47:56,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/data/f14466922/35f6f9e1566b47a48bdd2f10b5344477/FLAGefc8e10ee [2022-11-18 18:47:56,792 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:47:56,792 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/sv-benchmarks/c/termination-bwb/or-04.c [2022-11-18 18:47:56,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/data/f14466922/35f6f9e1566b47a48bdd2f10b5344477/FLAGefc8e10ee [2022-11-18 18:47:57,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/data/f14466922/35f6f9e1566b47a48bdd2f10b5344477 [2022-11-18 18:47:57,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:47:57,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:47:57,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:57,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:47:57,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:47:57,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecd785d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57, skipping insertion in model container [2022-11-18 18:47:57,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:47:57,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:47:57,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:57,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:47:57,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:47:57,473 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:47:57,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57 WrapperNode [2022-11-18 18:47:57,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:47:57,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:57,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:47:57,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:47:57,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,528 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-18 18:47:57,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:47:57,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:47:57,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:47:57,532 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:47:57,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,568 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:47:57,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:47:57,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:47:57,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:47:57,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (1/1) ... [2022-11-18 18:47:57,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:57,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:57,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:57,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 18:47:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:47:57,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:47:57,776 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:47:57,779 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:47:57,981 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:47:57,991 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:47:57,991 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:47:57,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:57 BoogieIcfgContainer [2022-11-18 18:47:57,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:47:57,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 18:47:57,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 18:47:58,003 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 18:47:58,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:47:58,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 06:47:57" (1/3) ... [2022-11-18 18:47:58,006 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18a4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:47:58, skipping insertion in model container [2022-11-18 18:47:58,006 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:47:58,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:47:57" (2/3) ... [2022-11-18 18:47:58,007 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@18a4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 06:47:58, skipping insertion in model container [2022-11-18 18:47:58,007 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 18:47:58,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:57" (3/3) ... [2022-11-18 18:47:58,010 INFO L332 chiAutomizerObserver]: Analyzing ICFG or-04.c [2022-11-18 18:47:58,136 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 18:47:58,136 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 18:47:58,137 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 18:47:58,137 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 18:47:58,137 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 18:47:58,137 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 18:47:58,138 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 18:47:58,138 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 18:47:58,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:58,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 18:47:58,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:47:58,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:47:58,204 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:47:58,204 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:47:58,205 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 18:47:58,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:58,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 18:47:58,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:47:58,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:47:58,208 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:47:58,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 18:47:58,222 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L20-2true [2022-11-18 18:47:58,223 INFO L750 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 8#L21-2true assume !(0 != main_~y~0#1); 6#L20-2true [2022-11-18 18:47:58,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:58,234 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-18 18:47:58,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:58,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150744770] [2022-11-18 18:47:58,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:58,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:47:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:58,393 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:47:58,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:58,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2022-11-18 18:47:58,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:58,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458974143] [2022-11-18 18:47:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:58,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:58,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:58,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458974143] [2022-11-18 18:47:58,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458974143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:47:58,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:47:58,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:47:58,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270753155] [2022-11-18 18:47:58,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:47:58,533 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 18:47:58,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:58,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:47:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:47:58,594 INFO L87 Difference]: Start difference. First operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:58,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:58,680 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-11-18 18:47:58,682 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2022-11-18 18:47:58,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 18:47:58,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2022-11-18 18:47:58,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 18:47:58,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 18:47:58,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2022-11-18 18:47:58,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:58,691 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-18 18:47:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2022-11-18 18:47:58,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-18 18:47:58,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-18 18:47:58,725 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-18 18:47:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:47:58,731 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-18 18:47:58,731 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 18:47:58,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2022-11-18 18:47:58,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-18 18:47:58,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:47:58,732 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:47:58,733 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-18 18:47:58,733 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:47:58,734 INFO L748 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 38#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 40#L20-2 [2022-11-18 18:47:58,734 INFO L750 eck$LassoCheckResult]: Loop: 40#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 41#L21-2 assume !!(0 != main_~y~0#1); 39#L21 assume main_~y~0#1 > 0; 35#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 36#L22-2 assume !(0 == 1 + main_~y~0#1);main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_~y~0#1 >= main_~y~0#1 && main_~y~0#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_~y~0#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_~y~0#1 <= main_~y~0#1 + (1 + main_~y~0#1); 42#L22-4 main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 43#L21-2 assume !(0 != main_~y~0#1); 40#L20-2 [2022-11-18 18:47:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:58,735 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-18 18:47:58,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:58,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290041962] [2022-11-18 18:47:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:58,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:58,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:47:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:58,743 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:47:58,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash -784860095, now seen corresponding path program 1 times [2022-11-18 18:47:58,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:58,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051419611] [2022-11-18 18:47:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:58,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:58,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:47:58,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051419611] [2022-11-18 18:47:58,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051419611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:47:58,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111643038] [2022-11-18 18:47:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:58,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:47:58,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:58,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:47:58,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:47:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:47:58,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 18:47:58,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:47:59,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:59,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:47:59,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:47:59,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111643038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:47:59,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:47:59,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-11-18 18:47:59,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533063587] [2022-11-18 18:47:59,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:47:59,137 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-18 18:47:59,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:47:59,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:47:59,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:47:59,139 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. cyclomatic complexity: 3 Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:47:59,209 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-18 18:47:59,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2022-11-18 18:47:59,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 18:47:59,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 18:47:59,212 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-18 18:47:59,212 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-18 18:47:59,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 12 transitions. [2022-11-18 18:47:59,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:47:59,213 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 18:47:59,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 12 transitions. [2022-11-18 18:47:59,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2022-11-18 18:47:59,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.0) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:47:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-18 18:47:59,215 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-18 18:47:59,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:47:59,216 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-18 18:47:59,217 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 18:47:59,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 8 transitions. [2022-11-18 18:47:59,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-18 18:47:59,218 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 18:47:59,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 18:47:59,218 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 18:47:59,218 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-18 18:47:59,219 INFO L748 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 112#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 114#L20-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0); 115#L21-2 [2022-11-18 18:47:59,219 INFO L750 eck$LassoCheckResult]: Loop: 115#L21-2 assume !!(0 != main_~y~0#1); 113#L21 assume main_~y~0#1 > 0; 109#L22 assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1); 110#L22-2 assume !(0 == 1 + main_~y~0#1);main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_~y~0#1 >= main_~y~0#1 && main_~y~0#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_~y~0#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_~y~0#1 <= main_~y~0#1 + (1 + main_~y~0#1); 116#L22-4 main_~y~0#1 := main_~x~0#1 - main_~y~0#1; 115#L21-2 [2022-11-18 18:47:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-18 18:47:59,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:59,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765753660] [2022-11-18 18:47:59,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:59,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:47:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:59,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:47:59,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:59,230 INFO L85 PathProgramCache]: Analyzing trace with hash 47812730, now seen corresponding path program 1 times [2022-11-18 18:47:59,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:59,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412777851] [2022-11-18 18:47:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:59,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:59,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:47:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:59,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:47:59,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:47:59,262 INFO L85 PathProgramCache]: Analyzing trace with hash 301657139, now seen corresponding path program 1 times [2022-11-18 18:47:59,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:47:59,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915640227] [2022-11-18 18:47:59,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:47:59,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:47:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:59,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 18:47:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 18:47:59,294 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 18:47:59,400 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 18:47:59,401 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 18:47:59,401 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 18:47:59,401 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 18:47:59,402 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 18:47:59,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:59,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 18:47:59,402 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 18:47:59,402 INFO L133 ssoRankerPreferences]: Filename of dumped script: or-04.c_Iteration3_Lasso [2022-11-18 18:47:59,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 18:47:59,403 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 18:47:59,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:47:59,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:47:59,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:47:59,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 18:47:59,495 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 18:47:59,496 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 18:47:59,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:59,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:59,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:59,512 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:47:59,513 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:47:59,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 18:47:59,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-11-18 18:47:59,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:59,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:59,592 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:59,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 18:47:59,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 18:47:59,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:47:59,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:47:59,652 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~y~0#1=7, ULTIMATE.start_main_~x~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0#1=9, ULTIMATE.start_main_~x~0#1=3}, {ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~y~0#1=3, ULTIMATE.start_main_~x~0#1=-4}] Lambdas: [1, 5, 1] Nus: [0, 1] [2022-11-18 18:47:59,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:47:59,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:59,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:59,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:59,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:47:59,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:47:59,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 18:47:59,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:47:59,708 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:47:59,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 18:47:59,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:59,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:59,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:59,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 18:47:59,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:47:59,781 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:47:59,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:47:59,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:47:59,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:47:59,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 18:47:59,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:47:59,825 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 18:47:59,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 18:47:59,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 18:47:59,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 18:47:59,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 18:47:59,860 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-18 18:47:59,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:47:59,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 06:47:59 BoogieIcfgContainer [2022-11-18 18:47:59,876 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 18:47:59,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:47:59,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:47:59,877 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:47:59,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:47:57" (3/4) ... [2022-11-18 18:47:59,882 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 18:47:59,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:47:59,883 INFO L158 Benchmark]: Toolchain (without parser) took 2724.46ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 62.3MB in the beginning and 98.3MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:59,883 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 92.3MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:59,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.94ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 62.0MB in the beginning and 102.0MB in the end (delta: -39.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:47:59,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.91ms. Allocated memory is still 123.7MB. Free memory was 102.0MB in the beginning and 100.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:59,888 INFO L158 Benchmark]: Boogie Preprocessor took 51.78ms. Allocated memory is still 123.7MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:47:59,889 INFO L158 Benchmark]: RCFGBuilder took 411.34ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 89.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:47:59,889 INFO L158 Benchmark]: BuchiAutomizer took 1879.26ms. Allocated memory is still 123.7MB. Free memory was 89.9MB in the beginning and 98.3MB in the end (delta: -8.4MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2022-11-18 18:47:59,890 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 123.7MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:47:59,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 92.3MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.94ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 62.0MB in the beginning and 102.0MB in the end (delta: -39.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.91ms. Allocated memory is still 123.7MB. Free memory was 102.0MB in the beginning and 100.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.78ms. Allocated memory is still 123.7MB. Free memory was 100.2MB in the beginning and 99.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.34ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 89.9MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1879.26ms. Allocated memory is still 123.7MB. Free memory was 89.9MB in the beginning and 98.3MB in the end (delta: -8.4MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 123.7MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one module whose termination is unknown.2 modules have a trivial ranking function, the largest among these consists of 9 locations. The remainder module has 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 13 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq100 hnf100 smp100 dnf100 smp100 tf100 neg100 sie142 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer cannot decide termination for the following lasso because it contains the following overapproximations. Overapproximations C: y = y|(y+1) [22] (Reason bitwiseOr) Lasso Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y~0#1, main_~x~0#1;havoc main_~y~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);" Loop: "assume !!(0 != main_~y~0#1);" "assume main_~y~0#1 > 0;" "assume !(0 == main_~y~0#1 || main_~y~0#1 == 1 + main_~y~0#1);" "assume !(0 == 1 + main_~y~0#1);main_~y~0#1 := ~bitwiseOr(main_~y~0#1, 1 + main_~y~0#1);assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || (main_~y~0#1 >= main_~y~0#1 && main_~y~0#1 >= 1 + main_~y~0#1);assume (main_~y~0#1 >= 0 && 1 + main_~y~0#1 >= 0) || main_~y~0#1 < 0;assume (main_~y~0#1 < 0 || 1 + main_~y~0#1 < 0) || main_~y~0#1 <= main_~y~0#1 + (1 + main_~y~0#1);" "main_~y~0#1 := main_~x~0#1 - main_~y~0#1;" RESULT: Ultimate could not prove your program: unable to determine termination [2022-11-18 18:47:59,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:48:00,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b958d0-beae-43e8-bde3-822a82e985e5/bin/uautomizer-TMbwUNV5ro/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN